Speaking at his daily White House coronavirus briefing, the president was asked about his decision to fire Michael Atkinson, the intelligence community inspector general who passed the whistleblower's report to Congress.
Mr Trump said that Mr Atkinson had done a "terrible job" and complained that the report was a hoax, even though it was later substantiated by a partial phone transcript released by the White House and by the testimony of a number of serving or former Trump administration officials.
The president told the briefing: ""That man is a disgrace to IGs. Let's go. Next. He's a total disgrace."